Registration Dossier
Registration Dossier
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EC number: 931-219-8 | CAS number: -
Melting point / freezing point
Administrative data
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2019
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- test procedure in accordance with generally accepted scientific standards and described in sufficient detail
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 019
- Report date:
- 2019
Materials and methods
Test guideline
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- GLP compliance:
- not specified
- Type of method:
- differential scanning calorimetry
Test material
- Reference substance name:
- silicon(4+) dialuminium(3+) dipotassium hexaoxidandiide
- EC Number:
- 931-219-8
- Molecular formula:
- SinO(3n-1)2(n-1) polymeric anions ionically bonded to Al3+ and K2+ cations
- IUPAC Name:
- silicon(4+) dialuminium(3+) dipotassium hexaoxidandiide
- Test material form:
- solid - liquid: suspension
- Remarks:
- migrated information: dispersion
- Details on test material:
- - Name of test material (as cited in study report): Superwool 1400
- Substance type: Inorganic
- Physical state: Solid
- Analytical purity: >99%
- Impurities (identity and concentrations): trace impurities
- Purity test date: March 2011
- Lot/batch No.: BG-11-P19-2563
- Expiration date of the lot/batch: 31/12/2020
- Stability under test conditions: stable
- Storage condition of test material: room temperature, sealed container
Constituent 1
- Specific details on test material used for the study:
- PAS sample milled to powder, 50mg of powder used
Results and discussion
Melting / freezing point
- Key result
- Melting / freezing pt.:
- > 350 °C
Any other information on results incl. tables
Polyethylene oxide used as a control sample in this case as it has a clear endothermic peak, due to melting. The peak is clearly visible from around 70C . In comparison the PAS shows a static line with no activity, indicating that below 350C , these fibres are not melting.
Applicant's summary and conclusion
- Conclusions:
- PAS fibres show a static line indicating that below 350C there is no melting.
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